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UNITED STATES PATENT OFFICE.

DAVID L. MCKENZIE, OF \VINNIPEG, MANITOBA, CANADA.

,LUBRICATING COMPOUND.

SPECIFICATION forming part of Letters Patent No. 351,195, dated October19, 1886.

Application filed June 10, 1886. Serial No. 204,720.

To all whom it may concern:

Be it known that 1, DAVID L. MCKENZIE, of \Vinnipeg, Manitoba, Canada,have invented a new and useful Improvement in Lubricating Compounds, ofwhich the following is a specification.

My invention is in the nature of an improved lubricating compound forcar-axle boxes, journal-boxes, and all sliding bearings, designed toreduce friction to a minimum, and to pre serve for a long time itslubricating qualities Without decomposition or deterioration.

In preparing my compound I take the following ingredients andproportions: Animal fat, five per cent, by weight; mineral-oil-refuse,seventy-five per cent., by weight; slaked lime, fifteen per cent, byweight; manganese, (black oXide,) five per cent., by weight. These I mixthoroughly together by heating to boil- (No specimens.)

slaked lime, and manganese, in or about the proportions named.

. DAVID L. MCKENZIE.

\Vitnesses:

EDWD. W. BYRN, SoLoN O. KEMoN.

